US Army Corps of Engineers
Hydrologic Engineering Center

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HEC-GeoHMS is a GIS extension that provides the user with a set of procedures, tools, and utilities for the preparation of GIS data for import into HEC-HMS and generation of GIS data from HMS output. While the GeoHMS extension is designed for users with limited geographic information systems (GIS) experience, knowledge of GIS is advantageous. Users, however, must have experience modeling with HEC-HMS and have a thorough understanding of hydrology to properly create and interpret GIS data sets.

Notice

The HEC-GeoHMS downloads available from this webpage were tested, verified, and supported by HEC. HEC-GeoHMS Version 10.2 is the last version that was tested and verified to be functional in ArcGIS 10.2.1 and is available from this webpage. HEC will no longer test and verify newer versions of HEC-GeoHMS that is compatible with versions of ArcGIS that are newer than Version 10.2.1. Newer versions of HEC-GeoHMS have been made available from the ESRI FTP site; however, these newer versions have not been tested nor will they be supported by HEC. HEC is developing the necessary GIS capabilities directly within HEC-HMS. HEC-HMS Version 4.3 will contain the subbasin and stream delineation capabilities in HEC-GeoHMS 10.2, future versions of HEC-HMS will contain the GIS parameterization features in HEC-GeoHMS 10.2.

HEC-GeoHMS 10.2 for ArcGIS 10.2:

This install package will install HEC-GeoHMS 10.2 and all its pre-requisites automatically. Documentation is available from the programs Help menu or at the link below.

ArcGIS 10.2 with the Spatial Analyst extension is required.

Download HEC-GeoHMS 10.2 Install Package (49.5 MB)
User's Manual (7.57 MB)

HEC-GeoHMS 10.1 for ArcGIS 10.1:

This install package will install HEC-GeoHMS 10.1 and all its pre-requisites automatically. Documentation is available from the programs Help menu or at the link below.

ArcGIS 10.1 with the Spatial Analyst extension is required.

Important note for HEC-GeoRAS 10.1 users:
If you are using HEC-GeoRAS 10.1 you must uninstall the old version released in Feb 2013 and install the updated setup package that supports side by side installation with HEC-GeoHMS 10.1.

Download HEC-GeoHMS 10.1 Install Package (42.3 MB)
User's Manual (7.57 MB)

HEC-GeoHMS 10 for ArcGIS 10.0:

This install package will install HEC-GeoHMS 10 and all its pre-requisites automatically. Documentation is available from the programs Help menu or at the link below.

ArcGIS 10 with the Spatial Analyst extension is required.

Download HEC-GeoHMS 10 Install Package (29.2 MB)
User's Manual (7.57 MB)

HEC-GeoHMS 5.0 for ArcGIS 9.3:

This install package will install HEC-GeoHMS 5.0 and all its pre-requisites automatically.

This version of HEC-GeoHMS is compatible with HEC-GeoRAS 4.3 and will not work with older versions. Download HEC-GeoRAS 4.3 from here.

ArcGIS 9.3 with the Spatial Analyst extension is required.

Download HEC-GeoHMS 5.0 Install Package (34.8 MB)
User's Manual (6.91 MB)

HEC-GeoHMS Example Data Set:

HEC-GeoHMS Example Data (14.8 MB)
HEC-GeoHMS Example Solution (53 MB)

Archived Versions:

HEC-GeoHMS 4.2.93 for ArcGIS 9.3
This package will install HEC-GeoHMS 4.2.93 and all its pre-requisites automatically.

ArcGIS 9.3 with the Spatial Analyst extensions are required.

Download HEC-GeoHMS 4.2.93 Install Package (31.3 MB)
User's Manual (7.57 MB)

HEC-GeoHMS 4.2.92 for ArcGIS 9.2
This package will install HEC-GeoHMS 4.2.92 and all its pre-requisites automatically.

ArcGIS 9.2 with the Spatial Analyst extensions are required.

Download HEC-GeoHMS 4.2.92 Install Package (23.6 MB)
User's Manual (7.57 MB)

Download HEC-GeoHMS 1.1 Setup Package (5.6 MB)
User's Manual